WebOptimum bearing and range estimators are presented for the planar problem and related to the optimum time delay vector estimator. Suboptimum realizations are considered … Webadshelp[at]cfa.harvard.edu The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A
Range and Bearing Estimation in Passive Sonar - IEEE Xplore
WebApr 11, 2024 · The problem of estimating the azimuth and elevation angle of a sound source using a compact array of hydrophones is addressed. The closed-form representations for several time-difference of arrival (TDOA) based estimators are given, and their accuracies are evaluated using both statistical simulations and in situ tests. Simulations … WebVolume VI deals with passive detection and target location, signal design, and optimum passive bearing estimation. Using a linear array, the problem of passive detection and target location was analyzed for the case of stationary Gaussian signals and noises with known statistical properties. A comprehensive treatment of this problem is presented. The … chu 5 letter words
Maximum likelihood estimators and Cramér–Rao bound for estimating …
WebTime delay estimation (TDE) is commonly performed in practice by crosscorrelation of digitized echo signals. Since time delays are generally not integral multiples of the sampling period, the location of the largest sample of the crosscorrelation function (ccf) is an inexact estimator of the location of the peak. WebActive sensors, for example, give a good estimate of range, while passive sensors are most efficient at estimating the bearing and radiated spectrum of a contact. If it is assumed that prior information about the state of a contact has been collected in a data fusion framework, either by active sonar state estimates or by previous passive ... WebThe number of signals present is assumed to be finite, and each signal is parameterized by a finite number of parameters. Based on measurements of the array output, the objective is to estimate the signals and their parameters. This research area has attracted considerable interest for several years. chu5 lifespan.org